Viscous spreading: evolution of the radial width of an unperturbed, initially very narrow and very dense ring (as in Lithwick & Chiang 2007). The red crosses indicate the ring’s full width at half maximum measured at different epochs. The green curve gives the theoretical behaviour in Δ = Δ0(1 + C.t1/3), for the best-fit value C = 0.13.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.